25400262030 has 128 divisors (see below), whose sum is σ = 72166381056. Its totient is φ = 5640460800.

The previous prime is 25400262007. The next prime is 25400262049. The reversal of 25400262030 is 3026200452.

It is a super-2 number, since 2×25400262030² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 539392 + ... + 584588.

It is an arithmetic number, because the mean of its divisors is an integer number (563799852).

Almost surely, 2^25400262030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25400262030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36083190528).

25400262030 is an abundant number, since it is smaller than the sum of its proper divisors (46766119026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25400262030 is a wasteful number, since it uses less digits than its factorization.

25400262030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45362.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 25400262030 its reverse (3026200452), we get a palindrome (28426462482).

The spelling of 25400262030 in words is "twenty-five billion, four hundred million, two hundred sixty-two thousand, thirty".